package ch8.unidirectionalToBidirectional;

import java.util.Dictionary;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Set;

public class Customer {

    private Set _orders = new HashSet();

    Set frindOrders(){
        return _orders;
    }

    void addOrder(Order arg){
        arg.addCustomer(this);
    }

    void removeOrder(Order arg){
        arg.removeCustomer(this);
    }


}
